IH 2/16/2026

Introduction to Pipeline Pigging and Related Health Hazards

  • Terminology:

    • Pig: A device used in pipelines, acts like a cleaning swab.

    • Pigging Run: The process of running a pig through a pipeline to clean or inspect it.

  • Health Risks:

    • Employees exposed to hazardous substances when opening pipelines, including:

    • Benzene: A volatile organic compound linked to serious health issues.

    • Naturally occurring radiation.

    • Hydrogen Sulfide Gas (H₂S): Highly toxic gas.

  • Safety Monitoring:

    • Monitoring for hazardous exposures is essential each time the pipeline is opened.

    • Training is provided to employees on how to monitor and use safety equipment for detecting these hazards.

Training Session Overview

  • Training Session Date: Recent Tuesday.

  • Attendees: Approximately 95 employees, some are new, while others had 5-10 years of experience.

  • Activities Covered:

    • Equipment use and calibration for monitoring hazards in the field.

    • Troubleshooting techniques for reading instruments during exposure assessments.

Frequency of Pipeline Pigging

  • Variation:

    • The frequency of pigging varies based on pipeline usage, ranging from:

    • 3 times a week

    • Once a year

    • Decision factors include volume of use and cleanliness of the pipeline.

Consultation and Company Interaction

  • Benchmark Company Contact:

    • Company reached out for safety training and review proactively.

  • Industry Context:

    • The consultant operates as a CIH (Certified Industrial Hygienist) in a predominantly isolated area of West Virginia, indicating a unique regional expertise and demand for industrial hygiene.

Training at Wolfpack Rentals

  • Training Course Types:

    • SafeLand USA: Hazard awareness course for newcomers in the oil and gas industry, similar to OSHA 10 or 30-hour training.

    • Hydrogen Sulfide (H₂S) Training: Four-hour course on safety measures when working around H₂S, mandatory for employees accessing well pads.

Presentation Overview in EHS Professional Networking

  • Meeting Details:

    • Network: Appalachian STEPS Network comprising EHS professionals in the oil and gas sector.

    • Location: Meeting held at Range Resources in Canonsburg, PA.

    • Presentation Focus: Discussed common health hazards and controls in the oil and gas industry, part of a 30-minute presentation during a four-hour event.

Anesthetic Gas Monitoring Overview

  • Context:

    • Conducted at Ruby Hospital and Children's Hospital.

    • Focused on monitoring anesthetic gases due to escape into operating rooms during surgical procedures.

  • Health Implications:

    • Staff exposure risks exist, especially among anesthesiologists during gas administration and patient exhalation of gases.

  • Overexposure Mitigation Strategies:

    • Scavenger Gas System: Used to suck away excess anesthetic gases, ensuring staff safety.

    • General Room Ventilation: Essential for diluting and removing anesthetic gases, preventing overexposure incidents.

Equipment and Methodology for Monitoring

  • Sterilization Procedures::

    • Use of sealed foil bags containing sterile sampling media for airborne sampling in operating rooms, ensuring contamination-free collection.

  • Sampling Techniques:

    • Equipment used must maintain sterility to prevent introducing foreign contaminants in monitored environments.

Effects of Overexposure for Healthcare Workers

  • Potential Health Risks:

    • Long-term exposure to anesthetic gases can cause adverse effects especially if high concentrations are involved.

    • Education Point: The variance between patient exposure durations (typically 2-8 hrs during surgery) and staff exposure periods, which can lead to chronic health concerns.

Upcoming Tools and Techniques

  • Noise Dosimetry:

    • Scheduled visit to measure noise exposure among employees during their 10-hour shifts.

  • Hexavalent Chromium Sampling:

    • Planned wipe samples to assess contamination of workplaces where chromates are used, thus maintaining cleanliness and safety standards.

Indoor Air Quality Issues

  • Case Overview:

    • Employee complaints regarding air quality in a newly constructed office area led to scheduled evaluations. Symptoms included itchy eyes, coughing, and sinus issues.

  • Testing Plans:

    • Evaluation for mold and VOCs (volatile organic compounds) due to new materials, alongside dust-related assessments from fabrication activities.

Practical Applications in Industrial Hygiene

  • Manual for Use:

    • In event of employee complaints regarding air quality or exposure issues, conducting systematic evaluations are essential for identifying performance gaps and remedying workplace health and safety concerns.

Occupational Exposure Limits (OELs) Discussion

  • Definition Remark:

    • OELs are critical benchmarks indicating the maximum allowable exposure limits for various harmful substances in workplace settings.

  • Interpretation Note: OEL measurements represent levels for workers to safely be exposed daily over a lifetime without adverse health effects.

Regulatory vs. Non-Regulatory Exposure Limits

  • Compliance Obligations:

    • Regulatory Limits: Set by OSHA, these must be followed strictly to avoid penalties.

    • Non-Regulatory Limits: Issued by organizations like ACGIH, mostly advisory and indicative of safe exposure levels without formal compliance mandates.

Frequency and Data Handling for OELs

  • Critical Examination of Approaches:

    • It is essential for industrial hygienists to understand how various sampling techniques align with the type of OEL for accurate reporting and compliance addressing.

Upcoming Assignments

  • Educational Task: Assignments are to correlate exposure limits to specific stressors within the workplace.

  • Chemical Information Requirements: Participants will research chemicals assigned, detailing their exposure limits, health effects, and methods for occupational exposure monitoring and control.

Summative Thoughts

  • Key Takeaway: Understanding and applying principles of occupational health, including monitoring for gases, allergenic materials, and sound levels, is foundational for ensuring the safety and well-being of employees across various industrial sectors.

  • Continued Learning: Emphasis placed on continual education, updates on OELs, and effective application of hazard assessments in real-world scenarios going forward.